#signin .modal-dialog{width:490px;margin-top: 130px;}
#signin .modal-header{background-color:#222;color: #fff;height:80px;}
#signin .modal-body h3{text-align:center;font-weight:700; }
#signin .modal-body form{width:360px;margin:20px auto}
#signin .modal-body form label{color:#666;font-family: "微软雅黑"}
#signin .modal-body form button{width:100%;}
#signin .modal-body form p{text-align: center;margin-top: 20px}